The box has arrived. I ordered 80 inches. The packaging says 80 inches. Excitedly, I tore open the box, ripped out the blade and threw the box away. Then I digress. A month later I tried to install the blade. It was the wrong size. Apparently the box was mislabeled and I received an 82.5" blade. I donated it to Habitat for Humanity and they are using it to furnish poor people's homes. They say it's a great blade. I went to a local woodworker and bought a suitable blade.